immobilization
noun
im·mo·bi·li·za·tion
variants:
also British immobilisation \ im-ˌō-bə-lə-ˈzā-shən 
\
\
Medical Definition of immobilization
: the act of immobilizing or state of being immobilized: as
a
: quiet rest in bed for a prolonged period used in the treatment of disease (as tuberculosis)
b
: fixation (as by a plaster cast) of a body part usually to promote healing in normal structural relation